Misty May Treanor of the United States digs out a ball during a women's semi-final beach volleyball match against China at the 2012 Summer Olympics, Tuesday, Aug. 7, 2012, in London. (AP Photo/Dave Martin)

US April Ross, left, and Jennifer Kessy, right, celebrate after defeating Brazil in their semifinal women's beach volleyball match against Brazil at the 2012 Summer Olympics, Tuesday, Aug. 7, 2012, in London. (AP Photo/Petr David Josek)

US April Ross dives for a ball during the semifinal women's beach volleyball match against Brazil at the 2012 Summer Olympics, Tuesday, Aug. 7, 2012, in London. (AP Photo/Petr David Josek)

April Ross of the United States sets the ball during a three set win over top seeded Brazil during a women's semifinal beach volleyball match at the 2012 Summer Olympics, Tuesday, Aug. 7, 2012, in London. (AP Photo/Dave Martin)

United States' Abby Wambach, right, tries to shoot during a women's quarterfinal basketball game against Canada at the 2012 Summer Olympics, Tuesday, Aug. 7, 2012, in London. (AP Photo//Lefteris Pitarakis)

United States' Amy Rodriguez, center, reacts as she shoots the ball during a women's quarterfinal basketball game against Canada at the 2012 Summer Olympics, Tuesday, Aug. 7, 2012, in London. (AP Photo//Lefteris Pitarakis)

Canada's Kim Smith (8) tries to inbound the ball under the pressure of USA's Angel McCoughtry (8) during their quarterfinals game at the Basketball Arena at the Olympic Park during the 2012 Summer Olympic Games in London, England, Tuesday, August 7, 2012. USA defeated Canada 91-48. (Harry E. Walker/MCT)

Canada's Tamara Tatham (13) shoots over USA's Candace Parker (15) during their quarterfinals game at the Basketball Arena at the Olympic Park during the 2012 Summer Olympic Games in London, England, Tuesday, August 7, 2012. USA defeated Canada 91-48. (Harry E. Walker/MCT)

Canada's Natalie Achonwa (11) scores against USA during their quarterfinals game at the Basketball Arena at the Olympic Park during the 2012 Summer Olympic Games in London, England, Tuesday, August 7, 2012. USA defeated Canada 91-48. (Harry E. Walker/MCT)

USA's Tamika Catchings (10) shoots against Canada during their quarterfinals game at the Basketball Arena at the Olympic Park during the 2012 Summer Olympic Games in London, England, Tuesday, August 7, 2012. USA defeated Canada 91-48. (Harry E. Walker/MCT)

Canada's Miranda Ayim (9) is pressured by USA's Tamika Catchings (10) during their quarterfinals game at the Basketball Arena at the Olympic Park during the 2012 Summer Olympic Games in London, England, Tuesday, August 7, 2012. USA defeated Canada 91-48. (Harry E. Walker/MCT)

Goalkeeper Betsey Armstrong of the United States is unable to stop a goal by Australia during a women's semifinal water polo match at the 2012 Summer Olympics, Tuesday, Aug. 7, 2012, in London. (AP Photo/Julio Cortez)

United States women's water polo athletes react to a goal against Australia during a women's semifinal water polo match at the 2012 Summer Olympics, Tuesday, Aug. 7, 2012, in London. (AP Photo/Julio Cortez)

Goalkeeper Victoria Brown of Australia makes a save from a penalty taken by Brenda Villa of the United States, during their women's semifinal water polo match at the 2012 Summer Olympics, Tuesday, Aug. 7, 2012, in London. (AP Photo/Alastair Grant)

Holly Lincoln-Smith, top left, of Australia defends against Kami Craig of the United States as Australia goalie Alicia McCormack looks on during a women's semifinal water polo match at the 2012 Summer Olympics, Tuesday, Aug. 7, 2012, in London. (AP Photo/Julio Cortez)

Kami Craig of the United States reacts after scoring against Australia during overtime of a women's semifinal water polo match at the 2012 Summer Olympics, Tuesday, Aug. 7, 2012, in London. (AP Photo/Julio Cortez)

Ash Southern, right, of Australia shoots against Lauren Wenger of the United States during a women's semifinal water polo match at the 2012 Summer Olympics, Tuesday, Aug. 7, 2012, in London. The U.S. won 11-9 in overtime. (AP Photo/Julio Cortez)

Melissa Seidemann, right, of the United States greets young British fans after they defeated Australia in their women's semifinal water polo match at the 2012 Summer Olympics, Tuesday, Aug. 7, 2012, in London. (AP Photo/Alastair Grant)

Brazil's Oscar, center, fights for the ball against South Korea's Yun Suk-young, left, and Ki Sung-yueng during their semifinal men's soccer match at the 2012 London Summer Olympics, Tuesday, Aug. 7, 2012, at Old Trafford Stadium in Manchester, England. (AP Photo/Jon Super)

Brazil's Oscar, right, celebrates with teammates after their 3-0 win over South Korea in their semifinal men's soccer match at the 2012 London Summer Olympics, Tuesday, Aug. 7, 2012, at Old Trafford Stadium in Manchester, England. (AP Photo/Jon Super)